[C320-list] mast

[Steve Magennis]

Because we have forward lowers, we can bend the mast slightly as the
lower third of the mast stays put but the top of the mast can move aft.
 This actually does put a bend in the mast and will slightly flatten
and de-power the main.

If you set up your rig tune as suggested by Mark (darn, I seem to have
developed a case of some-timers disease and can't remember his last
mane) from Quantum Sails in Texas suggested (more tension on the
forward lowers than on teh aft lowers), we can even slightly pre-bend
the mast.

Steve
Alchemist #909

--- John Van Vessem <jvanvessem at sbcglobal.net> wrote:

> Steve,
>    
>   I never understood how you can move or bend the top of the mast
> since the head stay and back stay counter each other.  To bend  the
> mast you would have to stretch the head stay.  Although there is a
> certain amount of stretch in steel cable, I think what you are really
> doing is pushing the mast down.
>    
>   John (Sojourn 645)
> 
> Steve Magennis <magenns at yahoo.com> wrote:
>   While that's true (the tapered top IS slightly lighter than an
> untapered top), the taper also allows us to SLIGHTLY bend (not rake)
> the top of the mast with a backstay adjuster (if the forward lowers
> are
> tight) and SLIGHTLY depower the main (the bend sucks a little cloth
> out
> of the belly of the main).
> 
> I don't think either reason is significant.
> 
> Steve
> Alchemist #909
> 
> --- David Gleason wrote:
> 
> > I
> > believe the reason the top of the mast istaperedd is to reduce the
> > weight aloft.
> > 
> > Dave Gleason
> > Proud Mary, #150
> > On Mon, 22 May 2006 11:35:48 EDT JBrown5093 at aol.com writes:
> > > Thanks for the information. This list is always helpful. Jim
> Brown
> > > 
> > > 
> > 
> > 
> 
> 
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> 
> 
> John Van Vessem
> Sojourn 645
> Vallejo Yacht Club
> 


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